Comment 6 for bug 1384502

Confirmed. The issue here is that as an NFS mount not mounted under /usr or /var, mountall implicitly treats this as 'nobootwait'. It's debatable whether this should be done, but the other issue is that filesystems being marked 'nobootwait' doesn't just prevent them from blocking the boot, it also prevents them from being waited for at all - if they become available while mountall is running it will mount them, but otherwise mountall will exit without caring that there are still filesystems that could possibly come online later and need mounted.

This is definitely a bug in mountall.